PressureKilopascals to Psi

Kilopascals to Pounds per Square Inch

Methodology·How We Verify

Snapshot

1 Kilopascal equals 0.145038 Pounds per Square Inch.

Reference basis: This conversion uses exact pascal-based pressure definitions.
Example: For 5 Kilopascals, the result equals 0.725189 Pounds per Square Inch.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

0.145038 Pounds per Square Inch (psi)

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API and AI agent access

Kilopascals to Pounds per Square Inch.

Machine-readable identifiers

Conversion family: pressure
Source unit: kilopascals
Target unit: psi

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "pressure",
  "value": 1,
  "from": "kilopascals",
  "to": "psi"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "pressure",
    "value": 1,
    "from": "kilopascals",
    "to": "psi",
    "result": {
      "raw": 0.14503773773021683,
      "display": "0.145038"
    },
    "canonicalPath": "/pressure/kilopascals-to-psi/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

The converter converts kPa to psi using the exact pascal-based pressure relationship between kilopascals and pounds per square inch. It is useful for reverse checks on tire pressure, compressor settings, HVAC readings, and gauge values where the starting point is kPa but the display or spec is in psi.

Formula: psi = kPa × 0.14503773773021683. Because both units are fixed pressure units normalized through pascals, the calculator, common values, and reverse page stay aligned on the same exact factor.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Kilopascal = 0.145038 Pounds per Square Inch (using exact pascal-based pressure definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Kilopascals (kPa)	Pounds per Square Inch (psi)
1	0.145038
5	0.725189
10	1.450377
30	4.351132
32	4.641208
35	5.076321
100	14.503774
200	29.007548
220	31.908302
300	43.511321

Questions & answers

Frequently Asked Questions

What is 1 kilopascal in pounds per square inch?

1 Kilopascal equals 0.145038 Pounds per Square Inch on this page.

When would I convert kilopascals to pounds per square inch?

This route is useful when translating pressure values across SI, metric engineering, and imperial conventions so datasheets, gauges, and calculations stay comparable.

How do I reverse Kilopascals to Pounds per Square Inch?

Use the mirror Pounds per Square Inch to Kilopascals route; it applies the inverse relationship with the same pressure assumptions.